Home / 3,320.55-4,974.29-1,855.23

Finding the Fourth Proportional to 3,320.55, 4,974.29 and 1,855.23

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Solution

The fourth proportional to 3,320.55, 4,974.29 and 1,855.23 is: 2,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.55 : 4,974.29 = 1,855.23 : x
  2. Step 2: Convert to fraction form
    3,320.55/4,974.29 = 1,855.23/x
  3. Step 3: Cross multiply
    3,320.55x = 4,974.29 × 1,855.23
  4. Step 4: Simplify right side
    3,320.55x = 9,228,442.76
  5. Step 5: Solve for x
    x = 9,228,442.76/3,320.55
  6. Step 6: Final answer
    x = 2,779.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.